Cooking retort or kettle.



PATENTED APR. 19, 1904;

0. HUBBBLL. COOKING RETORT 0R KETTLB.

APPLICATION FILED DBO. 19, 1903.

N0 MODEL.

Patented April 19, 1904.

UNITED STATES PATENT OFFICE.

ORRA HUBBELL, OF INDIANAPOLIS, INDIANA.

COOKING RETORT-OR KET TLE.

SPECIFICATION forming part of Letters Patent No. 757,555, dated April19, 1904.

Application filed December 19, 1903. Serial No. 135,842. (No model.)

To all? whom it may concern:

Be it known that I, ORRA HUBBELL, 'acitizen of the United States,residing at Indianapolis, in the county of Marion and State of Indiana,have invented certain new and useful Improvements in Cooking Retorts orKettles, of which the following is a specification.

In the construction of kettles for rendering or cooking material whichis first subjected to the intense heat of live steam and is to beimmediately thereafter subjected to the cooling action of cold water itis desirable that the water may be introduced very quickly.

The object of my present invention is to produce a cheap but veryefiicient construction of this kind, the invention residing principallyin the peculiar construction of a head or coverreceiving annulus whichmay be readilyv secured to the upper open end of a vat or retort ofusual boiler-like, construction.

The accompanying drawings illustrate my invention.

Figure 1 is a side elevation; Fig. 2, a partial vertical section, andFig. 3 a plan.

In the drawings, 10 indicates a vat or retort, preferably cylindricaland having an open upper end. Secured to this open upper end is a castannulus 11, provided at its upper end with a thickened portion 12,within which is cast or otherwise formed an annular chamber 13, fromwhich lead a plurality of openings 14, forming communicating passagesbetween the annular chamber and the vat. Formed in the upper end of theannulus 11 is an annular groove or recess 15, adapted to receive asuitable packing 16 and also adapted to receive an annular rib 17,formed upon the under side of a cover 18. 7

For convenience the cover 18 is hinged at 19 to the annular head 11 andis provided with a plurality of slotted cars 20, through the slots ofwhich may extend fastening-bolts 21,

provided with suitable nuts 22, the arrangement being such that the nutsmay be partially withdrawn and the bolts then swungdownward away fromthe cover, so that the cover may be thrown upward on its-pivot.

Leading into the annular chamber 13, preferably at closely-adjacentpoints, are two pipes 23 and 24, which are provided with valves 23' and24, respectively. One of these pipes is connected to a suitable sourceof steam-supply and the other is connected to a suitable source ofcold-Water supply.

When the vat has'been filled with material to be treated, the cover maybe secured in position and the'steam then turned into theannular chamber1 3, whereupon it will pass through holes 14 into the interior of thevat. At anytime, even before the steam has been cut off, the water maybe turned into the same chamber, and it will issue through openings 14into the vat. I

Thedevice described is extremely easy to construct, for the reason thatno complicated job of piping is required, and the apparatus isexceedingly eflicient.

I claim as my invention 1. The combination, with a retort having an openend, of an annulus secured to said open end and provided with aninternal chamber communicating with the interior of the retort, andsupply-pipes leading into said chamber.

2. The combination, with a retort having an openend, of an annulussecured to said open end and provided with an internal. chambercommunicating with the interior of the vat, supply-pipes leading intosaid chamber, a cover-receiving surface formed at the upper end of saidannulus, a coacting cover, and means for detachably securing said coverto the vat.

In witness whereof I have hereunto set my hand and seal, atIndianapolis, Indiana, this 15th day of December, A. D. 1903.

ORRA HUBBELL. [L. s]

